3.55MM CS X 103MM ID BLACK BUNA 70D

Buna-N O-Ring, 3.55 x 103 mm, 70A, Black, -40 to 250°F

Status
Available
Est. Ship Date
31 Oct 2026
Material
Buna-N (Nitrile / NBR)
Durometer
70 Shore A
Cross Section Type
Round
Color
Black
Minimum Temperature
-40°F (-40°C)
Maximum Temperature
250°F (121°C)
Unit of Measure
EA
SKU:
H3.55X103
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Product Specification

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Ordered as H3.55X103, this is a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 103 mm (4.055 in), a cross section of 3.55 mm (0.14 in), and an outside diameter of 110.1 mm (4.33 in). The o-ring compresses into its gland to block fluid or gas migration across a joint.

Buna-N (Nitrile) is specified here for economical choice for high-volume maintenance programs and most widely specified general-purpose sealing elastomer. Expect good resistance to petroleum-based oils, greases and lubricants, and many alcohols. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C).

You will find this material specified across general industrial maintenance, agricultural equipment, and automotive.

H3.55X103 ships individually. Unit weight is approximately 4.0344 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
Item
H3.55X103
Description
3.55MM CS X 103MM ID BLACK BUNA 70D
Actual Outside Diameter
110.1 mm (4.33 inch)
Actual Cross Section
3.55 mm (0.14 inch)
Actual Inside Diameter
103 mm (4.055 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity